LibTest/core/List/removeWhere_A01_t01.test.dart

// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion abstract void removeWhere(bool test(E element))
/// Removes all elements of this list that satisfy test.
/// An elements e satisfies test if test(e) is true.
/// @description Checks that all elements that satisfy test are removed, and
/// elements that does not are left.
/// @author kaigorodov

library removeWhere_A01_t01;

import "../../../Utils/expect.dart";

test(List create([int length])) {

  void check(List a0, bool test(var element)) {
    List a = create();
    a.addAll(a0);
    a.removeWhere(test);
    int k = 0;
    for (int k0 = 0; k0 < a0.length; k0++) {
      if (!test(a0[k0])) {
        Expect.identical(a0[k0], a[k], "k0=$k0, k=$k");
        k++;
      }
    }
    Expect.equals(a.length, k, "a.length=${a.length} k=$k");
  }

  List a0 = [1, 3, 3, 4, 5, 6];
  check(a0, (var element) => true);
  check(a0, (var element) => false);
  check(a0, (var element) => element > 4);
  check(a0, (var element) => element < 4);
  check(a0, (var element) => element == 4);
}